hphp/test/zend/good/ext/standard/tests/array/array_rand_variation2.php

   1 <?hh
   2 /* Prototype  : mixed array_rand(array input [, int num_req])
   3  * Description: Return key/keys for random entry/entries in the array
   4  * Source code: ext/standard/array.c
   5 */
   6
   7 /*
   8 * Test array_rand() with different types of values other than int passed to 'num_req' argument
   9 * to see that function works with unexpeced data and generates warning message as required.
  10 */
  11
  12 //define a class
  13 class test {
  14   public $t = 10;
  15   function __toString() {
  16     return "3object";
  17   }
  18 }
  19
  20 <<__EntryPoint>>
  21 function main(): void {
  22   echo "*** Testing array_rand() : unexpected values for 'num_req' parameter ***\n";
  23
  24   // Initialise function arguments
  25   $input = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
  26
  27   //get an unset variable
  28   $unset_var = 10;
  29   unset($unset_var);
  30
  31   //array of values to iterate over
  32   $values = array(
  33           // int data
  34   /*1*/   0,
  35           1,
  36           12345,
  37           -2345,
  38
  39           // float data
  40   /*5*/   10.5,
  41           -10.5,
  42           12.3456789000e10,
  43           12.3456789000E-10,
  44           .5,
  45
  46           // null data
  47   /*10*/  NULL,
  48           null,
  49
  50           // boolean data
  51   /*12*/  true,
  52           false,
  53           TRUE,
  54           FALSE,
  55
  56           // empty data
  57   /*16*/  "",
  58           '',
  59
  60           // string data
  61   /*18*/  "string",
  62           'string',
  63
  64           // object data
  65   /*20*/  new test(),
  66
  67           // undefined data
  68   /*21*/  @$undefined_var,
  69
  70           // unset data
  71   /*22*/  @$unset_var,
  72   );
  73
  74   // loop through each element of the array for different values for 'num_req' argument
  75   $count = 1;
  76   foreach ($values as $value) {
  77     echo "\n-- Iteration $count --\n";
  78     try {
  79       var_dump(array_rand($input, $value));
  80     } catch (Exception $e) {
  81       echo "\n".'Warning: '.$e->getMessage().' in '.__FILE__.' on line '.__LINE__."\n";
  82     }
  83     $count++;
  84   }
  85
  86   echo "Done";
  87 }